Our engines, how come they are still only third-rate?Take the engine of a car as an example, the engine of an airplane is definitely better than the engine of an airplane, and it is almost impossible to imitate it. Although the rocket engine is powerful, it is not an ordinary thing after all, and it is useless to say more.
Many people are asking, the 21st century has passed more than 20 years, China's economy has developed rapidly after so many years, and the automotive industry has also made great achievements. The quality of domestic cars is very good, even better than those joint venture cars, why do some people say that China's engines are poor?
In fact, they are also right, China's engine technology, in the world, that is, the second-rate and third-rate level, is basically a copycat. China has only made great progress in imitation capabilities, processing technology and manufacturing level, but basically has no independent research and development capabilities. In the field of bus engines, the gap between China and the world's automobiles is gradually narrowing, but it will take a long time to catch up;And the high-grade diesel used in commercial vehicles is even more different, which as a truck driver, he knows very well.
Some people are not convinced, thinking that the domestic engine is very good, what power, what torque, what thermal efficiency, are all crushing, why can't you use domestic ones?You're pandering to a foreign country.
First of all, you have to understand that a good parameter does not mean a good engine. It is relatively simple to get the parameters of the engine up, but the actual use is the place to test the performance of the engine. Take the BMW 20t, the data of this engine is too ugly, and it is jokingly called "turbo decompression" by many people, but if you really want to drive, there are really few who can surpass this engine. Some domestic engines, although the parameters look very good, in practical application, are very different.
So what's wrong with our engines?In a word, the accumulation of technology is less.
To take a simple example, the most important thing in an engine is to "burn", so that the fuel is fully burned in the engine and all the energy is released. This is also the most difficult problem for the engine to solve. Research in this field began in the 19th century, and European and American countries have a history in this field for nearly 100 years. Over the past 100 years, they have conducted a large number of tests, conducted a large number of tests for different engines and different combustion methods, and conducted a large number of tests, and finally came up with a set of more reasonable design schemes. At the same time, we have also gained a lot of technology and experience in the process.
After the reform and opening up, Huaxia has been vigorously developing the automobile industry, but this is also the past 20 years, Huaxia's automobile industry has just started. Although today's computers** have been able to eliminate many possible errors. However, it will take a long time to come up with a suitable solution. It's a time-consuming and laborious thing that Chinese automakers rarely do. They are all happy to make money rather than wasting their energy on unrewarding work.
And those foreign car companies, how do they do this?This is also because of the character of the person. There are many famous foreign automotive engineers who are the second generation, and their fathers have accumulated a lot of money by the development of the family business, which is enough for them to do scientific research with peace of mind, and the rotor engine, Stirling engine, Atkinson cycle and other bizarre engines are all invented by these guys. The second generation of our country prefers to invest in industries with quick results and high returns, such as finance, real estate, and capital, but they are not interested in scientific research.
In addition, in the early part of the last century, the achievements made in the field of basic physics and mathematics in Europe and the United States have provided strong theoretical support for the research of such projects, which can not only push many major engineering achievements to the peak of theory, but also apply theory to practice and promote the rapid development of engineering construction. The most famous of these is Einstein's theory of relativity, which led directly to the creation of the atomic bomb.
To this day, our basic research and basic theories cannot be compared with those of advanced Western countries. In the words of a professor at a famous university, our current physics is not even as good as it was a hundred years ago. Technology and technology are two different things, technology can be imitated, but technology cannot, without science, there can be no innovation. However, at present, our education is too heavy on literature and science, light on basic research, and mathematics, physics and chemistry, which should be the focus of education, have gradually been marginalized. Going to the factory is a shame, being an official is an honor, and in fact it is an obstacle.
The internal combustion engine is a pearl in modern industry, which reflects the overall strength of a country's industry. When a country's industry develops to a new level, it can produce better engines. And the industry of our country, in general, is not developed enough, it can be said that it is large but not strong. When the industrial level of our country is raised to a new level, a leap in materials and machining, we can produce automobile engines of international level.